InspectGold

This will simply add an additional tab to your InspectFrame that will display gold-related statistics without having to use the incredibly slow "Compare Achievements" feature from the default UI.

It may or may not work with <insert random UI name here>. If you run into issues ask the person who's responsible for the UI you're using - everyone's free to use and adept the code, I only ask for giving credit, that's all. The same goes for other addons that are modifying the InspectFrame in any way.